1
In your method, just add following session.
Session::flash('message', 'This is a message!');
In your next page (where you need to redirect), just check as follows-
@if(Session::has('message'))
<p class="alert {{ Session::get('alert-class', 'alert-info') }}">{{ Session::get('message') }}</p>
@endif
2
I did't get your second question properly. If you mean, how can you get url parameter value, you just try like that-
Request::segment()
Imagine that, you have a url http://example.com/param1/param2/param3 Now from this url, if you need to get "param3", just use
Request::segment(3);
Ref: https://laravel.com/api/5.0/Illuminate/Http/Request.html